In 2017, the joint session of Congress certifying Trump's 2016 win took a little over 30 minutes; I watched it. There were a few objections from Representatives, but none were joined by a Senator and so Biden gavelled them into silence.
Section 15 of the US Code governs this process, and has this to say:
When all objections so made to any vote or paper from a State shall have been received and read, the Senate shall thereupon withdraw, and such objections shall be submitted to the Senate for its decision; and the Speaker of the House of Representatives shall, in like manner, submit such objections to the House of Representatives for its decision...When the two Houses have voted, they shall immediately again meet, and the presiding officer shall then announce the decision of the questions submitted. No votes or papers from any other State shall be acted upon until the objections previously made to the votes or papers from any State shall have been finally disposed of.
Note the ellipsis, which represents the omission of quite a lot of text, which does not seem to provide the answer.
My question is; given there's likely to be objections signed by at least one Representative and Senator, which will therefore require the Senate to withdraw and a vote to be held, and given it seems that this rigmarole must be repeated for each contested State (6 of them by my count)...how long is all this going to take? Is there some mandated minimum time that the Houses must debate for before voting, or can Pelosi/McConnell simply raise an immediate vote without any debate at all each time?